.todo-box {
  position: absolute;
  width: 540px;
  top: 50%;
  left: 50%;
  margin-left: -270px;
  margin-top: -230px;
  background-color: #f5f5f5;
}

.todo-innerBox {
  position: relative;
  width: 500px;
  margin: 12px auto;
}

.todo-add {
    margin-top: 15px;
    .todo-btn {
        display: inline-block;
        padding: 6px 13px;
        font-size: 13px;
        font-weight: 400;
        text-align: center;
        cursor: pointer;
        border: 1px solid transparent;
        border-radius: 4px;
        color: #fff;
        background-color: #337ab7;
        border-color: #2e6da4;
    }
    .todo-input {
        width: 82%;
        height: 34px;
        padding: 2px 10px;
        margin-right: 10px;
        font-size: 13px;
        color: #555;
        border: 1px solid #ccc;
        border-radius: 4px;
        -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075);
        box-shadow: inset 0 1px 1px rgba(0,0,0,.075);
    }
}


.todo-list_li {
  position: relative;
  display: block;
  padding: 10px 15px;
  margin-bottom: -1px;
  background-color: #fff;
  border: 1px solid #ddd;
  font-size: 14px;
  &:first-child {
    border-top-left-radius: 4px;
    border-top-right-radius: 4px;
  }
  &:last-child {
    border-bottom-left-radius: 4px;
    border-bottom-right-radius: 4px;
  }
  .todo-list_del {
    float: right;
    border: none;
    background: #fff;
    font-size: 12px;
    cursor: pointer;
  }
}

.check-box {
  margin-right: 10px;
}

.list-group {
  padding-left: 0;
}

.todo-tab {
  display: flex;
  width: 100%;
  height: 40px;
  line-height: 40px;
  position: relative;
  margin-bottom: 6px;
}

.todo-tab_item {
  flex: 1;
  text-align: center;
  a {
    font-size: 14px;
    color: #4d555d;
    text-decoration: none;
  }
}